객관식
Where does the citric acid cycle occur within a eukaryotic cell?
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3. Energy & Cell Processes
Krebs Cycle
객관식
How many turns of the citric acid cycle are required to completely process one glucose molecule?
A
3 turns
B
1 turn
C
4 turns
D
2 turns
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검증된 단계별 안내1
Understand that glucose is a six-carbon molecule that undergoes glycolysis to form two molecules of pyruvate, each containing three carbons.
Recognize that each pyruvate molecule is converted into acetyl-CoA before entering the citric acid cycle, also known as the Krebs cycle.
Note that each acetyl-CoA molecule enters the citric acid cycle separately, meaning one glucose molecule results in two acetyl-CoA molecules.
Realize that each acetyl-CoA molecule requires one complete turn of the citric acid cycle to be fully processed.
Conclude that since there are two acetyl-CoA molecules from one glucose molecule, two turns of the citric acid cycle are required to completely process one glucose molecule.
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